Skip to content

Chris' Laboratory

chrislee.kr – Personal blog as bookshelves

Menu
  • Home
  • Github
  • Contact Me
Menu

Separating Lists with Headers in Android 0.9

Posted on 12/01/201111/09/2016 by Chris Lee
Read Time:3 Minute, 33 Second

Original Article: http://jsharkey.org/blog/2008/08/18/separating-lists-with-headers-in-android-09/

<!-- list_header.xml -->
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/list_header_title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingTop="2dip"
android:paddingBottom="2dip"
android:paddingLeft="5dip"
style="?android:attr/listSeparatorTextViewStyle" />
<!-- list_item.xml -->
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/list_item_title"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingTop="10dip"
android:paddingBottom="10dip"
android:paddingLeft="15dip"
android:textAppearance="?android:attr/textAppearanceLarge"
/>

 

<!-- list_complex.xml -->
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="10dip"
android:paddingBottom="10dip"
android:paddingLeft="15dip"
>
<TextView
android:id="@+id/list_complex_title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
/>
<TextView
android:id="@+id/list_complex_caption"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
/>
</LinearLayout>

 
==============================

public class SeparatedListAdapter extends BaseAdapter {
public final Map<String,Adapter> sections = new LinkedHashMap<String,Adapter>();
public final ArrayAdapter<String> headers;
public final static int TYPE_SECTION_HEADER = 0;
public SeparatedListAdapter(Context context) {
headers = new ArrayAdapter<String>(context, R.layout.list_header);
}
public void addSection(String section, Adapter adapter) {
this.headers.add(section);
this.sections.put(section, adapter);
}
public Object getItem(int position) {
for(Object section : this.sections.keySet()) {
Adapter adapter = sections.get(section);
int size = adapter.getCount() + 1;
// check if position inside this section
if(position == 0) return section;
if(position < size) return adapter.getItem(position - 1);
// otherwise jump into next section
position -= size;
}
return null;
}
public int getCount() {
// total together all sections, plus one for each section header
int total = 0;
for(Adapter adapter : this.sections.values())
total += adapter.getCount() + 1;
return total;
}
public int getViewTypeCount() {
// assume that headers count as one, then total all sections
int total = 1;
for(Adapter adapter : this.sections.values())
total += adapter.getViewTypeCount();
return total;
}
public int getItemViewType(int position) {
int type = 1;
for(Object section : this.sections.keySet()) {
Adapter adapter = sections.get(section);
int size = adapter.getCount() + 1;
// check if position inside this section
if(position == 0) return TYPE_SECTION_HEADER;
if(position < size) return type + adapter.getItemViewType(position - 1);
// otherwise jump into next section
position -= size;
type += adapter.getViewTypeCount();
}
return -1;
}
public boolean areAllItemsSelectable() {
return false;
}
public boolean isEnabled(int position) {
return (getItemViewType(position) != TYPE_SECTION_HEADER);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
int sectionnum = 0;
for(Object section : this.sections.keySet()) {
Adapter adapter = sections.get(section);
int size = adapter.getCount() + 1;
// check if position inside this section
if(position == 0) return headers.getView(sectionnum, convertView, parent);
if(position < size) return adapter.getView(position - 1, convertView, parent);
// otherwise jump into next section
position -= size;
sectionnum++;
}
return null;
}
@Override
public long getItemId(int position) {
return position;
}
}
=============================
public class ListSample extends Activity {
public final static String ITEM_TITLE = "title";
public final static String ITEM_CAPTION = "caption";
public Map<String,?> createItem(String title, String caption) {
Map<String,String> item = new HashMap<String,String>();
item.put(ITEM_TITLE, title);
item.put(ITEM_CAPTION, caption);
return item;
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
List<Map<String,?>> security = new LinkedList<Map<String,?>>();
security.add(createItem("Remember passwords", "Save usernames and passwords for Web sites"));
security.add(createItem("Clear passwords", "Save usernames and passwords for Web sites"));
security.add(createItem("Show security warnings", "Show warning if there is a problem with a site's security"));
// create our list and custom adapter
SeparatedListAdapter adapter = new SeparatedListAdapter(this);
adapter.addSection("Array test", new ArrayAdapter<String>(this,
R.layout.list_item, new String[] { "First item", "Item two" }));
adapter.addSection("Security", new SimpleAdapter(this, security, R.layout.list_complex,
new String[] { ITEM_TITLE, ITEM_CAPTION }, new int[] { R.id.list_complex_title, R.id.list_complex_caption }));
ListView list = new ListView(this);
list.setAdapter(adapter);
this.setContentView(list);
}
}

 

Share

Facebook
Twitter
LinkedIn
Email

Related

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Categories

  • Databases (11)
    • MongoDB (4)
    • MS-SQL (1)
    • MySQL (6)
  • E-Commerce (8)
    • Magento (8)
  • Finance (2)
  • Frameworks (84)
    • Adobe Flex (1)
    • Angular (ngx) (3)
    • Codeigniter (6)
    • CSS (5)
    • Django (2)
    • Javascript (13)
    • Node.js (6)
    • PHP (17)
    • React Native (4)
    • React.js (1)
    • Sencha Touch (4)
    • Terraform (1)
    • Vue.js (1)
    • WordPress (4)
    • Yii2 (3)
  • General Documents (15)
  • Marketing (3)
  • Mobile Development (33)
    • Android (20)
    • iPhone (13)
  • Platforms (21)
    • Arduino (2)
    • Docker (5)
    • Google App Engine (5)
    • Raspberry Pi (5)
    • Samsung Smart TV (4)
  • Security (17)
  • Server (31)
    • Linux (13)
  • Tools (14)
    • SVN (7)
  • Uncategorized (2)

Search

Recent Posts

  • Bootstrapping Kubernetes cluster with kubeadm
  • Taint all resources in the one module
  • Alpine – Plugin caching_sha2_password could not be loaded
  • npm link with peerDependencies
  • How to setup Gitlab runner with KVM enabled

Recent Comments

  • Obayed on Binance Auto Trading Bot – Buy low/Sell high with stop loss limit/Trade multiple coins
  • Ari on How to install memcache.so/memcached.so for MAMP Pro (Mac)
  • Mida ali on Binance Auto Trading Bot – Buy low/Sell high with stop loss limit/Trade multiple coins
  • Chris Lee on How to install memcache.so/memcached.so for MAMP Pro (Mac)
  • Chris Lee on Setting Up A VPN Server On OSX 10.6

Tags

1 ajax amazon android android-addpart browser chrislee-kr codeigniter codeigniter-tcpdf com-apple-net-racoon CSS CSS history hack delpaigmail-com entity-addpart-double exception-printing-is-disabled-by-default-for-security-reasons ext-plugins-listpagingplugin ext-plugins-listpagingplugin-example f iphone javascript jquery-defaultchecked jquery-samsung-smart-tv listpagingplugin mac magento-exception-printing-is-disabled-by-default-for-security-reasons magento-sample-data-exception-printing-is-disabled-by-default-for-security-reasons nu-vot null-core-errors-confignotfound-config-mk9engine-ini php samsung-smart-tv-jquery samsung-smart-tv-sdk-ajax samsung-smart-tv-sdk-jquery samsung-tv-sdk samsung-tv-sdk-jquery samsung tv sencha-smart-tv sencha-touch-list-paging smart-tv-jquery sqlite subversion svn tcedook tcpdf-codeigniter uilinebreakmodecharacterwrap-is-deprecated unknown-column-link-area

Meta

  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org
© 2023 Chris' Laboratory | Powered by Minimalist Blog WordPress Theme